Bolting-machine



S. SNYDER AND L. C. WlNEGARDNER.

BOLTING MACHINE.

APPLICATION FILED FEB. 21. I917.

1,327,636, 4 I Patented J an. 13, 1920.

5 SHEETSSHEEI 2.

S. SNYDER AND L. C. WINEGARDNER.

BOLTING MACHINE.

APPLICATION FILED FEB. 21. 1911.

Patented Jams, 1920.

v 5 SHEETSSHEET 3.

W \fimzis S. SNYDER AND L. C. WINEGARDNER.

BOLTING MACHINE.

APPLICATION ,FILED FEB-21,1917.

, 1,327,63 Patented Jan. 13,1920.

5 SHEETS-SHEET 4.

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s. SNYDER AND L. 0. WINEGARDNER.

BOLTING MACHINE. 7 APPLICATION HLED FEB. 21. 1917.

Patented Jan. 13, 1920.

5 SHEET$SHEEI 5.

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@lvwanfoz UNITED STATES PATENT OFFICE.

SIMON SNYDER AND LLOYD CALVIN WINEGARDNER, OF MUN CY, PENNSYLVANIA.

BOLTING-MACHINE. I

Specification of Letters Patent.

Patented Jan. 13, 1920.

Application filed February 21, 1917. Serial No. 150,057.

To all whom it may concern Be it known that we", SIMON SNYDER and LLOYDC. 1 YLNEGAIIDNER, citizens of the United States, residing at Muncy,inthe county of Lycoming and Stateof Pennsylvania, have inventedc'ertainnew and useful Imp1.-o\ e1nents in Bolting Machines and we do herebydeclare the following to be a full, clear, and exact description; of theinvention, such as will enable others Skilled in the art to which itappertains' to make and. use the same;

This invention relates to self-balancing of that type in which thesicv'estructure is suspended from the ceiling or other overhead support bymeans of wooden reeds, rods, or other flexible connections and given thedesired movement by means of a centrally-disposed vertical shaft havingits bearings in the open center of the sieve frame. In such machines asheretofore constructed the sieve structure is caused to jerk or thebuilding to a greater or less extent, and the shaft bearings aresubjected to severe strains and excessive" wear, and our invention isdesigned to overcome these and other disadvantages incident to the useof such machines as heretofore ordinarily constructed and to providea'simple, inexpensive and efiicient self-balancing driving mecha nism,which will insure a smooth, even run' nin motion, and avoid jerking orjarring the uilding, "oge'ther with means for applying power to the maindriving shaft either above or below the sieve structuresas desired undervarying conditions in practical use.

The invention will first be hereinafter more particularly described,with reference to the accompanying drawings, which form a part of thisspecification, and then-pointed out in the claims at the end of thedescription. I

In said drawings, Figure 1, Sheet 1, is a the driving shaft; therelative positions of said shafts being indicated in full and dottedlines;

Fig. 4 is a detail vertical section partly in side elevation of saidcouplin the section being taken on the line 4% of Fig. 3

Fig. 5 is a detail vertical sectional view of said coupling taken on theline 5-5 of Fig. 4, looking in the direction of the arrow;

Fig. 6 is a plan view of the lower cuplike' member of said coupling;

Fig. 7, Sheet 3, is a vertical sectional elevat'ion of the drivingmechanism; associated gyrating bolting machines or shaking bolts partsbeing broken away;

Fig; 8 is a detail sectional View of a form of ball bearing for thelowerend of the driven section of the driving shaft omitting theend-thrustbearing shown in Fig. 7

Figs. 9 10, 11, 12 and-.13 are detail views of a modification of theeccentric coupling; Fig. 9 being a vertical section; Fig. 10 afragmentary detail section; Fig. 11 a plan View; and Figs. 12 and 13plan views of the lower and upper members, respectively, of saidmodified form of coupling;

Fig. 14, Sheet 4, is aside elevation, partly in section, of the boltingmachine shown in Fig. 1, with the driving section of the sectionaldriving shaft arranged below the sieve structure; the balland-socketlike supporting bearing being arranged in a reverse positlon to thatshown in Fig. 1;

Fig. 15 is a detail sectional view of the aforesaid ball-and-socket.like bearing in said reversed position;

Fig.116 is a fragmentary sectional side elevation of a modified form ofour invention applied-Ito a difierent'form of sieve from that shown inthe other figures;

Fig; 17, Sheet 5, is a side elevation of a bolting machine embodying ourinvention showing balance weights on the driving shaft arranged partlyabove and partly below the sieve-box;

Fig. 18 is a detail sectional view of one of the balance weights shownin Fig. 17; and

Fig. 19 is a side elevation of another 1110dification showing thebalance weight entirely below the sieve-box.

Referring to said drawings, in which the same reference letters are usedto denote corresponding parts in different views, the sieve-frame A maybe of the form shown, or any suitable construction, such as ordinarilyemployed in this class of machines. In the form shown in Figs. 1 and 2ithas four their length is permitted as hereinafter described. Thesieve-frame may be suspended from the ceiling or an overhead support bymeans of flexible rods A preferably arranged at the four corners thereofso as to support the sieve in such manner that it may be free to move inany direction within certain. limits for imparting the desired gyratoryor whirling movement thereto.

The shaft section 0 has attached thereto within the open center of thesieve-frame, as shown in Fig. 1, a number of balance weights D, whichare preferably constructed with suitable pockets, as at (Z, to receiveremovable weights for increasing or decreasing the balance weight orload on the shaft as desired; said balance weights having sockets oreyes adjustably fitted on the shaft and secured in a fixed position byset screws as shown, or by other means such as ordinarily employed inthis class of machines. These balance weights may be secured on theshaft within the open center of the sieveframe, as shown in Figs. 1 and2, or placed one above and another below the sieveframe, as shown inFig. 17 of the drawings; or all below the sieve-frame, as shown in Fig.19; the position thereof being determined by the operator as desiredunder different conditions or requirements in practical use, as in usingsieve-boxes of different heights.

The shaft section C is preferably constructed with reduced end portionsor extensions, one of which extends above the upper bridge-tree and theother below the lower bridgetree, as clearly shown in Figs. 1 and 7leaving a shoulder at the junction of the larger and smaller portions,and said reduced extensions are screw threaded, as shown, for theattachment of a sleeve or collar 6 having an end flange between whichand a'nut b screwed on such extension the annular ball bearing B may befitted, as shown; said nut serving to force the collar against theshoulder on the shaft and prevent endwise movement of the annular ballbearing. Said bearings are preferably of the well known type adapted toresist both radial and end thrust and consisting of concentric ringshaving annular grooves in their confronting surfaces with balls runningin said grooves; the outer ring being arranged in slidable contact withthe inner wall of the socket or annular opening in the bridge-tree inwhich said bearings are fitted. The socket or opening in the lowerbridgetree may have an annular shoulder on which the outer member of theannular ball hearing may rest, as shown in Fig. 8, and thus support theshaft section C and connected parts Within the sieve-frame so that itmay move therewith in both lateral and vertical '75 directions. Butpreferably the lower shaft hearing has an end-thrust bearing B Fig.

7, interposed between the bottom of the box and the annular radial andend-thrust bearing B, With the inner ring of the latter abutso ting theshoulder on the shaft and forced thereagainst by the sleeve and nut b, 6the shaft section C being revolubly supported on said end-thrustbearing, so as to prevent excessive wear and reduce friction to aminimum. A stuffing box of any suitable construction may also beprovided below each of said ball hearings, to prevent the escape of oilor other lubricant, and may consist of a bottom plate 6 closing theopening through the bridge-tree and having an opening therein to receivethe reduced extension of the shaft C and a sleeve underneath screwed orotherwise fastened'on the shaft and entering the enlarged lower portionof the opening in said plate; the latter being secured to thebridge-tree by set screws, as shown. A to plate or cover Zr for theopening through t e bridge-tree is also provided, having an openingtherein to receive the larger diameter of the shaft and an oil cupthereon to introduce oil in the receptacle thus provided between saidbottom plate and cover, so that the annular ball bearings may besubmerged in oil or other lubricant.

The shaft section C is suspended from the ceiling or overhead support insuch manner as to permit a universal pivotal or swinging motion of saidshaft section through which motion is imparted to the shaft section 0and therethrough to the sieve structure. To this end we preferably employ a ball-ands0cket like hearing such as shown in Patent No. 961,814,granted Simon Snyder June 21, 1910, in or on which the driving shaftsection is supported; said bearing consisting essentially of asemiglobular member seated in a socket or cuplike member which is boltedor otherwise secured to the ceiling or other support; the shaft sectionC passing through said semiglobular member from which it may besuspended above the sieve structure, as shown in Figs. 1 and 7, orsupported below the sieve structure, as shown in Figs. 14 and 15, beingso supported in either case that it may rotate freely and at the sametime swing 7 about its axis at an angle to the other shaft section C.Whether supported above or below the sieve structure the weight of theshaft is borne by an end-thrust ball bearing interposed between thesemiglobular member and a collar fixed on the shaft. The socket memberof the bearing projects into a cup-like receptacle fixed on the shaftand carrying a pulley for the application of power; said receptaclebeing adapted to contain oil and having a stuffing-box connection withthe shaft to prevent leakage. This shaft-supporting ball bearing ismerely a preferred form adapted for the purposes of our invention andany other suitable form may be employed, which will permit free rotationof the shaft and also a gyrating or swinging motion about its own axis.The adjacent ends of the shaft sections C and C are connected so as tocause them to rotate together while permitting relative movement in thedirection of the length of the shaft, and for this purpose we employ aneccentric coupling device which in the form shown consists ofinterengaging members E and E each formed with a tubular projection orboss to receive the end of the shaft to which it is secured by a setscrew, as shown in Figs. a to 7. One of said members, or the part E, hasan annular flange e thereon, and the other, or the part E an end flangeor disk 6 fitted within said annular flange; said disk having aperturestherein to receive upstanding projections or pins 6 carried by themember E whereby the two members are caused to rotate together whilepermitting relative movement of the shaft sections in the direction oftheir length, so as to compensate for any difference in length of thedriving shaft due to shifting of the position of the two sections from avertical position parallel with the axis of the sieve structure to aninclined position or at a greater or less angle to each other, aswhen-the sieve structure is at the limit of its "throw in starting andstopping. At the lower or free end of the shaft section C there is acontrolling devicesuchas shown in said-Patent No. 961,814, consistingessentially of an eccentrically attached stub shaft or pin G on whichthereis preferably a loose disk or weight 0 encircled by athrust-limiting flange F mounted on a short shaft or stud f which isrevolubly fitted in a socket provided therefor in a fixed bracket orpedestal G secured to the floor or a fixture above or below thesieve-frame so that the thrust-limiting flange can turn freely with theloose disk or revoluble weight when engaged thereby and thus avoid orreduce friction to a minimum. The short shaft or stud f is in exactalinement with the shaft section C- and the stub shaft O concentric withthe axis of revolution, though eccentric to the shaft section C. Thethrust-limiting flange may be provided with a lining of leather or othersuitablematerial and a protuberance on the inner side thereof with whichthe loose disk or weight 0 may contact to facilitate rotation and reducefriction.

In Fig. 14: of the drawings, the arrangement of the driving shaft andcontrolling device is the reverse of that shown in Fig. 1, the drivingsection of the driving shaft being located below the sieve-frame and thecontrolling device above said frame. Otherwise the two constructions aresubstantially identical. In both cases the desired rotary and swingingmotion of the driving section of the driving shaft is permitted by meansof a ball-an-d-socket like shaft hearing, which in one instance is atthe upper end and in the other instance at the lower end of the drivingsection of the driving shaft; said bearing having a pulley thereonaroundwhich belt may pass for the ap )lication of power, suchbelt running oversuitable idlers from a drive shaft overhead or belowthe mill floor, asmay be most convenient and desirable in practical use. In other words,in Fig. 1%, instead of being suspended with capacity for universalpivotal or swin ing motion, the driving section of the sha t issupported from below the sieve-frame with capacity for such movement ina ball-and socket like bearing substantially thesame as the bearingshown in Fig. 1, andthe operation is substantially the same inbothcases, so that further description of Fig. 14 is deemed unnecessary.

In Figs. 9 to 13 of the drawings is shown a modification of theeccentric, coupling, which in this instance consists ofupper and lowermembers E and E respectively, one part or member E having teeth or cogse thereon and the other part or member E having spaced sockets c thereinto receive the cogs e wherebythe two shaft sections are caused to rotatetogether; ,the contacting surfaces of said cogs and the innerlwalls ofsaid sockets being rounded ."to permit the desired rocking or universalmovement necessary to allow ,the driving and driven shaft sections .toassume ,a p sition ,at an angle to each other and also of .sufiicientdepth to, permitrelative moven'ient of the shaft sections in..thedirection oftheir length without separating the two members bywithdrawal of the cogs from thesockets.

In Fig. 16 is shown a fragment of a sieve structure of a different formfrom that shown in the other figures of the drawings,

and a different form of eccentric coupling; the coupling in thisinstancebeing combined with a balance weight in the form of a balancewheel G fixed onthe projecting end of the driven section C of thedrivingshaft and takingjthe place of the lower member E ofthe coupling shown inFigs. 1 andS to 6. The coupling member E on the driving section of theshaft is the same as the coupling member E above described, while thebalance wheel G carries studs or pins engaging the apertures in saidmember E as hereinbefore described. These apertures in both instancesare enlarged toward opposite ends so as to present rounded surfaces withwhich the pins on the other coupling memher contact, as more clearlyshown in Fi 5. lVithin or on the balance wheel G is placed an adjustableweight having a threaded portion or eye screwed on a threaded bolt foraccomplishing such adjustment. A similar adjustable balance weight H ismounted on a bracket I secured on the lower end of the shaft sectionbelow the sieve structure, by socket, and set screw connec tion, asshown.

In Fig. 17 is shown a sieve structure differing in height from thatshown in Fig. l and a different form of balance weight or weights,differently arranged but with driving mechanism of the sameconstruction. The balance weight in Fig. 1*? is distributed partly aboveand partly below the sieveframe. These weights are of the same generalform and are adjustable in the same manner as the weights shown in Fig.1G, and

are mounted upon balance wheels K and K similar to and secured upon thedriven shaft sect-ion C iii the same manner as the balance wheel Gr,Fig. 16.

In Fig. 19 is shown a sieve structure with driving mechanism andassociated parts substantially identical with Fig. 1, except a differentform and arrangement of the balance weight, which in this instanceconsists of a single weight or load adjustably secured on the drivenshaft section below the sieveframe; there being several small weights orremovable sections mounted on a bracket L having a socket or eye and setscrew connection with the shaft.

The operation of our invention and its advantages will be understoodfrom the foregoing description. taken in connection with theaccompanying drawings. The described driving mechanism insures a silenteasy running machine that cannot impart any of its motion to or causevibrations of the building in which it is used, and it is automatic andadapted to impart the gyrat ing or circular throw with an easy runningmotion and may be started and stopped without requiring any attention011 the partof the operator. The drive is also simple in constructionand inexpensive in manufac ture. In starting free inclination of theshaft sections is permitted, though the throw of the sieve-box isrestricted by the thrustlimiting flange, and the driving shaft quicklyassumes a vertical position and settles down to an approximately truerotary motion while the sieve-box is whirled about the axis of rotationwithout jerking, pushing or pulling the rods by which it is suspended;and the eccentrically arranged driven shaft is adapted to move with thesieve-box in every direction and relatively to the driving section inthe direction of its length, so that no vibrations are imparted to thebuilding. The sievebox may swing freely in any direction withoutaffecting the shaft bearings or subjecting the same to severe strains orexcessive wear, while the shaft sections rotate freely at an angle toeach other as required in stopping and starting or before settling downto an approximately true rotary motion, and perfect adjustment andself-balance is secured by proper arrangement and adjustment of thebalance weights arranged either partly above and partly below thesieve-frame, or entirely above or below the sieve-frame, or entirelywithin the sieve-frame as desired to meet diflerent requirements inpractical use. The driving mechanism being also reversible, permits theapplication of power either above or below the sieve-frame, to suit theconvenience of the user or as may be best adapted for the building inwhich the ma chine is used.

Having thus described our invention, what we claim new and desire tosecure by Letters Patent of the United States is:

1. In combination, a sieve structure freely suspended for gyration, asectional driving shaft having a driven section journaled in bearingswithin said structure and a driving section j ournaled in a universalbearing secured to a fixed support, and means for connecting theadjacent ends of said shaft sect-ions so as to permit a swingingmovement of said driving section and relative movement of both sectionsin the direction of their len th, said means comprising a couplingmember on one shaft section having projections thereon protruding intointerengaging means on an adjacent coupling member on the other shaftsection. whereby the two members are caused to rotate together whilepermitting a rocking and sliding movement of one member within oruponthe other.

2. In combination a sieve structure freely suspended for gyration, asectional driving shaft having a driven section journaled in bearingswithin said structure and driving section journaled in a universalbearing secured to a fixed support, and means for connecting theadjacent ends of said shaft sections so as to permit a swinging movementof said driving section and relative movement of both sections in thedirection of their length, said means comprising a disk-like member onone shaft section arranged within a cup-like member on the other shaftsection, said cup-like member carrying a pin which protrudes through anaperture in said disk-like member, whereby the two members are caused torotate together While permitting a rocking and sliding movement of onemember within or upon the other.

3. A gyratory bolter comprising a flexibly suspended sieve structure, adriving shaft section revolubly supported in a bearing adapted to permita universal swinging motion thereof, a driven shaft section supported inbearings within the sieve structure eccentric to said driving section,and a coupling device by which the adjacent ends of said shaft sectionsare slidably and eccentrically connected, said device comprising opposedslidably connected members one rockingly supported within or upon theother adapted to cause said shaft sections to rotate together whilepermitting relative movement thereof in the direction of their length.

ii. In combination with a flexibly suspended sieve structure, means forimparting thereto a gyratory movement, said means comprising a sectionaldriving shaft having a driven section journaled in said structure and adriving section journaled in a bearing adapted to permit a universalrotary and swinging movement thereof, and a coupling deviceeccentrically connecting said shaft sections, said coupling devicehaving opposed members fixed on the adjacent ends of the eccentricallyarranged shaft sections and said members having interen aging means ontheir confronting surfaces W ereby they are caused to rotate togetherand adapted to permit a rocking and also sliding movement toward andfrom each other, so as to permit relative movement of the two shaftsections in the direction of their length.

5. In combination, a flexibly suspended sieve-frame, a sectional drivingshaft having one section journaled within the sieveframe inanti-friction bearings adapted to resist both radial and end thrust, thelowermost bearing including an end-thrust antifriction bearingsupporting said shaft section within the sieve-frame, another shaftsection supported in bearings which permit both a rotary and a swingingmovement thereof; said sections carrying interenga ing coupling memberswhereby they are caused to rotate together while relative movement inthe direction of their length is permitted.

6. In a gyratory bolting machine, a selfbalancing driving mechanismcomprising a shaft journaled in bearings within the sieve structure andmovable therewith bodily in all directions; an eccentrically disposeddriving shaft, and an eccentric coupling device connecting the drivingand driven shafts; said coupling device comprising opposed members onthe adjacent ends of the two shafts interconnected to adapt them torotate together, one member being rockingly and slidably supportedwithin or upon the other to permit relative movement of the shafts inthe direction of. their length and also adapted to permit the shafts torotate at an angle to each other.

7 In a bolting machine, a sectional driving shaft comprising a drivensection journaled within the sieve structure and movable therewith inall directions, a driving section supported in a bearing which permitsboth a rotary and a swinging movement thereof about its own axis, aneccentric coupling connecting the adjacent ends of said shaft sectionsso as to cause them to rotate together while permitting relativemovement thereof in the direction of their length, said couplingconsisting of a cup-like member on one shaft and a disk-like member onthe other shaft rockingly and slidably fitted within the cup-like memberand adapted to rotate therewith.

In testimony whereof we aflix our signatures in the presence of twowitnesses.

SIMON SNYDER. LLOYD CALVIN WINEGARDNER.

Witnesses:

STEPHEN SOARS, C. C. PFLEEGOR.

